package com.example.concurrent;

import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;

import lombok.extern.slf4j.Slf4j;

@Slf4j(topic = "c.test40")
public class Test40 {
	public static void main(String[] args) {
		Student stu = new Student();
		AtomicReferenceFieldUpdater updater;
	}
	
}
class Student{
	
}
